【作者】 申健；

【导师】 金钧；

【作者基本信息】 大连交通大学 ， 交通信息工程与控制， 2008， 硕士

【摘要】 随着经济的快速发展,能源的消耗逐年增加,常规能源面临日益枯竭的窘境,迫切需要可再生的新型清洁能源。在目前众多可再生能源与新能源技术开发中,潜力大、最具开发价值的是风能和太阳能。它们是一种取之不尽、用之不竭的可再生能源。风力发电环境友好、技术成熟、可靠性高、成本低且规模效益显著,是发展最快的新型能源。光伏并网发电是近几年才发展起来的新技术,它为光伏的大规模利用提供了广阔的市场空间,代表着未来的前进方向。风力发电和太阳能发电能量变化趋势相反,可以形成能量互补。因而两者可以组成联合供电系统。很多与风光联合发电并网运行有关的技术课题亟待解决,例如,风电场并网会改变系统原有的潮流及网损的分布,对电网的规划提出了新的要求;可能给配电网带来电能质量问题,如谐波污染、电压波动及闪变;对系统的功角、频率以及电压稳定性产生不利影响;需要研究能够考虑风电特点的发电和运行计划方法;重新评估系统的发电可靠性,分析风电的容量可信度;研究新的无功调度及电压控制策略等。随着风电场的容量越来越大,对系统的影响也越来越明显,研究风电并网对系统的影响已成为重要课题。太阳能光伏发电系统在将直流电能经逆变转换为交流电能的过程中,会产生大量谐波。因此,太阳能光伏发电系统实际并网时需检测其谐波电压、电流是否满足国家标准,如不满足,需采取加装滤波装置等相应措施,滤波装置可与无功补偿装置配合安装。太阳能光伏发电系统所发电力功率因数较高,约在0.98以上,基本上为纯有功输出。为满足无功补偿按分层分区和就地平衡的原则,太阳能光伏发电系统应配置适当的无功补偿装置,以满足电网对无功的要求,提高电压质量,降低线损。本文针对风光联合发电并网运行有关的技术问题进行研究,即研究增加风、光新能源装置并网发电后,对整个系统潮流分布、电能质量及稳定性的影响,利用电力系统综合分析程序进行仿真分析计算,并提出解决问题的方法。对风电场和光伏电场并网对系统正常运行造成的影响,以及风电场接入系统的最大装机容量进行了分析计算。通过应用电力系统分析综合程序(PSASP),对风电系统在不同运行方式下作仿真计算,分别从稳态和动态方面分析了一定容量的风电场接入电力系统的运行情况。通过不同运行方式下的电力系统潮流计算,寻找能够使系统运行于静态安全稳定条件下的风电场最大容量。通过在一定的系统故障下动态仿真计算,确定电力系统暂态稳定性的风电场最大安装容量。更多还原

【Abstract】 Along with economic fast development, the consumption of energy increases year by year. Conventional energy is faced with increasingly exhausted, needing new clean energy urgently. At present,the most potential and development value energy is the Wind power and the Solar Energy. They are inexhaustible and renewable energy that does not exhaust. Wind power is environmental friendly , which has matural technology ,highly reliability , and low cost.The technology of Solar energy is the new technology in last few years which has offered wide market airborne that the Solar energy will be large-scale used,and also represent the future development direction.The Wind Power generator and the Solar energy change tendencies are opposite,and they can form energy complementary .So the two energy can composit with as the unit power supply system.But it has many program that should be solved urgently which the technology of the Wind Power fields net the power system operation. For instance, the Wind Power field bring the power quality problem of distribution net, as harmonic pollutes; Produces unfavourable influence for systematic power angle, frequency as well as voltage, and stability; Evaluating the system generate electricity reliability again, analysing the capacity confidence level of Wind Power;Along with the capacity of Wind Power field becoming more and more large , the program of the influence of Wind Power nets power system has become important.The Solar energy system produce plenty of harmonics. Therefore the Solar energy system connect to network needing to detection harmonic voltage and current whether satisfy national standard. Needing to add corresponding measures such as wave installation if it is not satisfy. In order to meet the need of the principle of statified compensation active power balance in the zone ,the Solar energy system should install the proper compensation installation, so as to satisfy network for the requirement of the active power, raising voltage quality and reducing line harms.The paper is that studing the alliancingWind Power and Solar Energy generate power and the operation technology of connecting the power system.Researching that after increases the Wind power and Solar Energy new energy installation, the method of solving problem for the influence distribution trend of entire system, the quality of electrical energy and stability. And throuthout using the Power System Analysis Software Package processing stimulation calculation analyzing..更多还原